This project is to address the problems encountered by the staff of custom and their customers. In view of this problems the manual process involved in the handling and management of goods in custom office were critically studied and the problems noted. This project went further to treat the different techniques used in implementing the newly designed software. This work is conducted towards the computerization of the existing system of processing data in order to identify some various problems that is being encountered in mechanical aspect of it and the manual method of data processing in the billing of imported and exported customer goods and thereby recommending first class solution to the problem of information system in the organization. This theory also compares the existing system with the new system which is exact and a faster way of processing data and the problem that is faced by customers when they are clearing their goods from the wharf. This theory includes the implementation, progragramming, test run change over the process of the new system. The software is designed using visual basic 6.0 language. This language was chosen as a result of its easy syntax and structure for developing windows-based applications.